Author: Joseph F. Merritt
Publisher: Lulu.com
ISBN: 1411678184
Category : Shrews
Languages : en
Pages : 470

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Book Description

Author: Jeremy B. Searle
Publisher: Cambridge University Press
ISBN: 110701137X
Category : Nature
Languages : en
Pages : 499

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Book Description
Presents new insights into speciation through an in-depth analysis of extraordinary chromosomal variation in one species written by leading experts.

Author: W. Patrick Luckett
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 344

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Book Description
Tree shrews are small-bodied, scansorial, squirrel-like mammals that occupy a wide range of arboreal, semi-arboreal, and forest floor niches in Southeast Asia and adjacent islands. Comparative aspects of tree shrew biology have been the subject of extensive investigations during the past two decades. These studies were initiated in part because of the widely accepted belief that tupaiids are primitive primates, and, as such, might provide valuable insight into the evolutionary origin of complex patterns of primate behavior, locomotion, neurobiology, and reproduction. During the same period, there has been a renewed interest in the methodology of phylogenetic reconstruction and in the use of data from a variety of biological disciplines to test or formulate hypotheses of evolutionary relationships. In particular, interest in the com parative and systematic biology of mammals has focused on analysis of phy logenetic relationships among Primates and a search for their closest relatives. Assessment of the possible primate affinities of tree shrews has comprised an important part of these studies, and a considerable amount of dental, cranio skeletal, neuroanatomical, reproductive, developmental, and molecular evi dence has been marshalled to either corroborate or refute hypotheses of a special tupaiid-primate relationship. These contrasting viewpoints have re sulted from differing interpretations of the basic data, as well as alternative approaches to the evolutionary analysis of data.

Author: Sara Churchfield
Publisher: Cornell University Press
ISBN: 9780801425950
Category : Nature
Languages : en
Pages : 212

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Book Description
'Churchfield . . . has provided a comprehensive volume that synthesizes a wealth of information about shrew ecology and life history.'--Choice In this book, Sara Churchfield offers an encyclopedic coverage of shrews, describing in great detail their life cycle and breeding biology. Her comprehensive treatment of these ubiquitous animals examines their life history, social organization, communication and orientation, food and foraging, energetics, community structure and habitat, and relationship to humans.

Author: Joseph F. Merritt
Publisher: JHU Press
ISBN: 0801879507
Category : Biography & Autobiography
Languages : en
Pages : 334

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Book Description
Animals of this size face different physiological and ecological challenges than larger mammals.

Author:
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 432

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Book Description

Author: Jeremy B. Searle
Publisher: Cambridge University Press
ISBN: 1108759513
Category : Science
Languages : en
Pages : 499

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Book Description
The chromosome complement (karyotype) often differs between related mammalian species (including humans vs chimpanzees), such that evolutionary biologists muse whether chromosomal difference is a cause or a consequence of speciation. The common shrew is an excellent model to investigate this problem because of its many geographical races (potential species) differing chromosomally, and its several sibling species (recently speciated forms) that are also chromosomally different. This system is an exceptional opportunity to investigate the role of chromosomes in speciation and this volume reflects detailed research following these approaches. Highlights include the demonstration that chromosomal re-arrangements can be associated with complete loss of gene flow and thus speciation and that selection within species hybrid zones may lead to de-speciation rather than speciation. This book represents an extraordinarily detailed consideration of the role of chromosomes in speciation in one astonishing species, providing insights to those interested in mammalian diversity, chromosomal evolution and speciation.

Author: David W. Nagorsen
Publisher: UBC Press
ISBN: 9780774805636
Category : History
Languages : en
Pages : 180

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Book Description
Mammalogist David Nagorsen covers 12 species of insectivores (shrews and moles) and one marsupial (an opossum), describing their identifying characteristics, natural history, habitat and distribution. He also discusses the general biology of this group, including diet and anatomy.

Author: James Smith Findley
Publisher: University of New Mexico Press
ISBN:
Category : Nature
Languages : en
Pages : 108

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Book Description

Author: Ralph P. Eckerlin
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 276

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Book Description